Researchers at the Australian National University (ANU) have achieved a new efficiency record for hydrogen cells that can convert water into hydrogen simply using sunlight.
The unique approach outlined in the ANU study also used inexpensive semiconductor materials and resulted in a 17.6% solar-to-hydrogen efficiency.
This is nearing the efficiency of solar panels being installed on rooftops, which have an efficiency of around 20%.
Lead author Dr. Siva Karuturi says hydrogen has an important role to play in solving the intermittency of renewable energy sources.
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